Probability Formula Class 9 PDF Free Download

Are you looking for important formulas of Probability for Class 9? You’re in the right place! In this post, we’ve compiled all essential formulas from Chapter 1 of Class 9 Maths – Probability. You can download the free PDF and revise quickly for your exams.

1. Experiment : An operation which can produce some well – defined outcomes is called experiment.

each outcome is called an event.

2. Random Experiment : An experiment in which all possible outcomes are known and the exct outcome cannot be predicted in advance is called a random experiment.

3. Trial : By a trial we mean performing a random experiment.

4. Empirical Probability : Suppose we perform an experiment and let n be the total number of trials.

5. Basic concepts of probability.